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An inductor of 2.5 H and a resistance of 10 ohm are connected in a circuit containing a source of 25 V. The time const is _____m sec

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answer is 250.

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Detailed Solution

L = 2.5 H, R = $10 Ω$
Time const $τ = \frac{L}{R}$
Time const $τ = \frac{2.5}{10} = 0.25$
$τ = 25 \times 10^{- 2} \sec$ = 250 m sec

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An inductor of 2.5 H and a resistance of 10 ohm are connected in a circuit containing a source of 25 V. The time const is _____m sec